package com.jing.mall.product.service.impl;

import com.jing.mall.product.entity.SkuImagesEntity;
import com.jing.mall.product.entity.SpuInfoDescEntity;
import com.jing.mall.product.service.*;
import com.jing.mall.product.vo.SkuItemSaleAttrVo;
import com.jing.mall.product.vo.SkuItemVo;
import com.jing.mall.product.vo.SpuItemAttrGroupVo;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ThreadPoolExecutor;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.jing.mall.common.utils.PageUtils;
import com.jing.mall.common.utils.Query;

import com.jing.mall.product.dao.SkuInfoDao;
import com.jing.mall.product.entity.SkuInfoEntity;


@Service("skuInfoService")
public class SkuInfoServiceImpl extends ServiceImpl<SkuInfoDao, SkuInfoEntity> implements SkuInfoService {
    @Autowired
    SkuInfoService skuInfoService;
    @Autowired
    SkuImagesService skuImagesService;
    @Autowired
    SpuInfoDescService spuInfoDescService;
    @Autowired
    AttrGroupService attrGroupService;
    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;
    @Autowired
    ThreadPoolExecutor executor;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SkuInfoEntity> page = this.page(
                new Query<SkuInfoEntity>().getPage(params),
                new QueryWrapper<SkuInfoEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public void saveSkuInfo(SkuInfoEntity skuInfoEntity) {
        this.baseMapper.insert(skuInfoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SkuInfoEntity> wrapper = new QueryWrapper<>();
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)) {
            wrapper.and(w -> {
                w.eq("sku_id", key).or().like("sku_name", key);
            });
        }
        String catalogId = (String) params.get("catalogId");
        if (!StringUtils.isEmpty(key) && "0".equalsIgnoreCase(catalogId)) {
            wrapper.eq("catalog_id", catalogId);
        }
        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(key) && "0".equalsIgnoreCase(catalogId)) {
            wrapper.eq("brand_id", brandId);
        }
        String min = (String) params.get("min");
        if (!StringUtils.isEmpty(key) && "0".equalsIgnoreCase(catalogId)) {
            wrapper.ge("price", min);
        }
        String max = (String) params.get("max");
        if (!StringUtils.isEmpty(key) && "0".equalsIgnoreCase(catalogId)) {
            wrapper.le("price", max);
        }
        IPage<SkuInfoEntity> page = this.page(
                new Query<SkuInfoEntity>().getPage(params),
                wrapper
        );

        return new PageUtils(page);
    }

    @Override
    public List<SkuInfoEntity> getSkusBySpuId(Long spuId) {
        List<SkuInfoEntity> list = this.list(new QueryWrapper<SkuInfoEntity>().eq("spu_Id", spuId));
        return list;
    }

    @Override
    public SkuItemVo item(Long skuId) throws ExecutionException, InterruptedException {
        SkuItemVo skuItemVo = new SkuItemVo();
        CompletableFuture<SkuInfoEntity> infoFuture = CompletableFuture.supplyAsync(() -> {
            //1.sku基本信息获取
            SkuInfoEntity baseInfo = skuInfoService.getById(skuId);
            skuItemVo.setInfo(baseInfo);
            return baseInfo;
        }, executor);

        CompletableFuture<Void> salesAttrFuture = infoFuture.thenAcceptAsync((res) -> {
            //3.获取spu的销售属性组合
            List<SkuItemSaleAttrVo> saleAttrVos = skuSaleAttrValueService.getSalesAttrsBySpuId(res.getSpuId());
            System.out.println(res.getSpuId());
            skuItemVo.setSaleAttr(saleAttrVos);
        }, executor);

        CompletableFuture<Void> descFuture = infoFuture.thenAcceptAsync((res) -> {
            //4.获取spu的介绍
            SpuInfoDescEntity spuInfoDesc = spuInfoDescService.getById(res.getSpuId());
            skuItemVo.setDesp(spuInfoDesc);
        }, executor);

        CompletableFuture<Void> attrGroupFuture = infoFuture.thenAcceptAsync((res) -> {
            //5.获取spu的规格参数信息
            List<SpuItemAttrGroupVo> vos = attrGroupService.getAttrGroupWithAttrsBySpuId(res.getSpuId(), res.getCatalogId());
            skuItemVo.setGroupAttrs(vos);
        }, executor);

        CompletableFuture<Void> imagesFuture = CompletableFuture.runAsync(() -> {
            //2.sku的图片信息
            List<SkuImagesEntity> images = skuImagesService.selectImagesBySkuId(skuId);
            skuItemVo.setImages(images);
        }, executor);
        //等待所有任务都完成

            CompletableFuture.allOf(salesAttrFuture, descFuture, attrGroupFuture, imagesFuture).get();

        return skuItemVo;
    }

}
